![]() The closer satellites are to Earth, the smaller the area each satellite can cover and the faster objects need to travel to stay in orbit. The biggest changes to the satellite internet industry in years are unfolding right now, as companies start broadcasting internet signals from satellites located much closer to Earth in low-Earth orbit. It’s also more expensive to launch and maintain satellites so far away from Earth, although there don’t have to be as many satellites for internet coverage as LEO constellations. This journey causes delays, latency, and slow data speeds for customers on Earth. ![]() Satellite internet signals travel fast, but they still cover a significant distance. The downside to communications satellites in a geostationary orbit is the time it takes for data to travel back and forth to Earth. But as you move farther out, it will cover a bigger area with less powerful light. If it’s really close, it can offer more powerful light to a concentrated area. Wonder how this works? Think of a flashlight shining on a globe. Plus, high-Earth orbit is so far away from the Earth that a couple of HEO satellites can cover a whole continent. ![]() So the satellites essentially hover over the same place on Earth all the time, keeping them stationary and easier to maintain. Internet communication satellites are often launched into high-Earth orbit (HEO) because satellites in HEO travel at the same speed as the Earth rotates. This effectively means that a much larger number of satellites are needed to provide consistent coverage to any given area. However, the area covered by a single satellite is much smaller, and the satellites themselves can’t maintain a stationary orbit. In addition to resultant effects tests for Total Ionization Dose (TID), Total Non-Ionization Dose (TNID) and Single-Event Effect (SEE), ST's LEO space components benefit from a Certificate of Conformance, aimed at approving flight-ready components, without any additional cost, lead time or risk for aerospace manufacturers and service providers.Low-Earth orbit satellites are more or less polar opposites of HEO satellites-they’re situated much closer to the Earth, and so speeds are generally faster and latency is lower. The resulting manufacturing LEO flow is largely based on AEC-Q100 / AEC-Q101 specifications but also includes specific design and manufacturing variations for space applications. Specifically tailored to the needs of constellations, our LEO series benefits from dedicated processes for qualification, manufacturing, screening, quality assurance and logistics. Taking full advantage of our 40-year Space heritage and automotive AEC-Q100 qualified production lines, ST's LEO series of rad-hard products in plastic packages offers a unique combination of cost-effectiveness, radiation hardness, quality assurance, and delivered quantities. Trade-off focused on answering LEO and MEO constellations They focus on various objectives including internet access, in-flight internet services and Earth observation missions. In a constellation configuration, anywhere from tens to thousands of satellites are launched with less demanding mission profiles than traditional Geostationary Earth Orbit (GEO) satellites. These small, lightweight devices (up to a few hundred kilos) operate typically in Low Earth Orbit (LEO) at altitudes from 400 to 2000 kilometers. Made possible by the lower cost of launches, the Space industry now sees a rush to deploy satellite constellations.
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